Separable fastener



' F. S. CARR; SEPARABLE FASTENER.

APPLICATION FILED JAN. 16, 1929.

Patented Aug. 9, 1921.

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UNITED sr' FRED S. CARR, or naw'roiv, MASSACHUSETTS, assreivoa TO CARR FASTENER- COMPANY, or CAMBRIDGE, MASSACHUSETTS, A CORPORATION or MAINE.

. SEPARABLE FASTENER.

Toa llwho'mz't may 00mm:

Be it known that I, FRED S. CARR, a citizen of the United States, and a resident of Newton, in the county of Middlesex, Commonwealth of Massachusetts, have invented an Improvement in Separable Fasteners, of which the following description, in connection with'the accompanying drawings, is a specification, like characters on the drawings representing like parts. i

This invention pertains to improvements in separable fasteners, and more particularly, though not exclusively, to fasteners, in which a lateral lock is provided against separation of stud and socket by lateral strain, this being effected by permitting rotation or partial rotation of the socket to bring the same When under lateral strain into the most favorable position to resist such strain. V

In the drawings, which show a preferred form of one embodiment of my invention:

Figure 1 is an elevation'of two pieces of fabric secured together by apreferred form of fastener;

Fig. 1;

Fig. 3 is a section on the line 33 of. Fig.

2; and r Fig. 4 shows a modification of my inven- ,tion, being a section on the same plane as tener in which separation of stud and socket under lateral Strain is opposed by notches in the stud-receiving aperture of the socket,

these operating on the general principle shown in mycopending application, Serial No. 307,111, filed June 27, 1919. The invention is of use, however, inconnection with other types of socket.

Referring to the drawings, I have shown a stud 5 of usual construction. cooperating I the socket casing 6. Fig.2 is a section on the line 22 of Specification of Letters Patent. .Patented Aug. 9, 1921. Application filed January 16, 1920. Serial na a'tipei. I

vide for this rotation in any suitable way,

but I preferably do so by securing the socket casing to the fabric as shown in Fig.

2 by means of a socket-containing part 8, which may be secured to the fabric 7 in any suitable way, herein shown as including a rivet 9 and a washer 10. It will be understood that the socket-containing part 8 loosely surrounds the socket casing 6 so that the latter may turn. One of the other various'satisfactory ways of practising my invention is shown in Fig.4, wherein the socket casing 6 is secured to the socket-carrying fabric 7' by a socket-carrying plate 11 which performs the same functions as the socket containing part 8 shown in Fig. 2, but is constructed in asomewhat different way, being adapted to engage beneath thefiange 12 of The socket-carrying plate 11 may be secured to the fabric, 7 in an suitable way, herein typified'by the rivet 13 and washer 1%} The socket-carrying plate 11 is preferably constructed as shown,'and

preferably attached to the goodszas'shown in such a way that the casing 6 may be free to rotate thereon. I

,Referring now to the specific form of my invention, I have shown in Fig.3 the socket 6 having a double notched aperture 17 therein and provided with a spring 18, the

socket which I have elected to show in'con nection with thepreferred embodiment of If strain is exerted between thefabric carrying'the Stud and the fabric car'rying the socket in such a direction as to brlng the neck of the stud substantially directly against an adjacent portion of the spring 18, the-casing 6 will turn on its carrying part in one direction or the other sothat the neck of the stud may, engage directly in oneof the notches. As described .in my copending application. above referred to, these notches are not of sufiicient depth to preventseparation of stud and socketby a simple tipping movement at an angle greater than that which is likely to be produced by the resolution of forces arising from lateral strain.

It will be understood that I use the word fabric in its broader sense, not only to include woven materials, but any flexible carrying medium.

vVhile I have shown and described a preferred form of one embodiment of my invention, it will be understood that changes involving omission, substitution, alteration and reversal of parts, and even changes in the mode of operation, may be made without departing from the scope of my invention, which is best defined in the following claims.

Claims:

1. A socket for separable fasteners comprising, in combination, a casing having a notched stud-receiving aperture, a spring in said casing, a metallic securing device rotatably engaging said casing and means for fastening said securing device to a carrying part while leaving said casing tree to rotate relative thereto.

2. A socket for separable fasteners comprising, in combination, a plate having a non-circular stud-receiving aperture therein, said aperture extended at one side to provide a narrowed portion into which the neck of the stud may enter to provide a lock against separation arising from resolution of forces under lateral strains, a metallic securing device for securing said plate to its carrying fabric, said seeuringdevice permitting rotative movement 01" said plate relative to its carrying fabric, thereby to permit said plate to turn so that the narrowed portion may lie toward the direction of strain between stud and socket.

in testimony whereof i have signed my name to this specification.

FRED s. CARR; 

